73 Magazine June 1995 (#417) The N4UAU Super CW Station - This li'l gizmo does it all! ...... N4UAU 10 Collinear 5/8 - Wave Omni Antenna for 2 Meters - Commercial antenna performance at a home-brew price! ...... WD0O 18 Battery Monitor and Charge Controller - Check the voltage and keep the battery charged ...... K4GOK 32 An Inexpensive Morse Code Keyer - Build your own for under 10 bucks ...... N2YMW 36 Measuring the Antenna from the Shack - The half-wave length feedline and how to get it...
Topics: antenna, amateur, radio, mhz, ihe, meter, ham, tuner, power, frequency, amateur radio, radio today,...
73 Magazine March 1975 (#174) Can a 7 foot 40m Antenna Work? - The small loop ...... W0PJG 33 The Secret of Antenna Gain - (Shhh -it's capture area!) ...... K2OAW 39 Twinlead Phased Array - Two elements on 40m - or any other band ...... WB2NQT 47 The Incredible Capacitive Antenna - Now: an 18" allband antenna ...... W0KGI 49 An 80m Phased Array - Switchable directivity ...... W2OZH 52 A Coax Amplifier for 450 MHz - 6 dB stacked collinear ...... W5GDQ 58 Invisible Antennas - Why ask for...
Topics: antenna, amateur, mhz, power, meter, radio, center, receiver, gain, magazine, amateur radio, power...
73 Magazine September 1992 (#384) The Raser - A novel wire antenna system ...... W2OZH 8 My Longwire Antenna - Cheap, no-fuss, and it's got gain! ...... NH6XK 18 Wideband RF Baluns - A practical guide to the perfect match ...... K8IHQ 20 NiCd Restorer/Charger - Don't throw old NiCds away! ...... N7APE 24 High Performance 2 Meter Yagi - Improve your signal with this compact design ...... W3HMI 30 Common Audio and Speaker Bus - Control noise pollution chaos ...... W6WTU 36 ATV Transmitter, Part...
Topics: radio, antenna, amateur, mhz, ihe, ham, repeater, power, amateur radio, radio today, call call, ham...
73 Magazine April 1987 (#319) Dayton Digest - If you haven't been to the Dayton Hamvention, you haven't been to a hamfest ...... WA4BPI 32 QRP Antenna Farming - Work the world from a small lot with a few Watts ...... W0VM 36 The Cellular Phony Antenna - A two-meter mobile antenna with a twist ...... WA2AJQ 38 Weatherproofed Antennas - Stop ripping apart your antennas every year in the name of "maintenance" ...... KD5UJ 40 Tube Terror - "Before you can leave, you must find an...
Topics: antenna, amateur, radio, mhz, novice, antennas, repeater, frequency, ham, amateur radio, flea...
73 Magazine September 1985 (#300) Again, the CCD - The continuing story of ham radio's most amazing antenna ...... KC8BN/7 12 The Downunda Project: Part II - How to assemble and align the DSE 2m transceiver described last month ...... Simpson 17 Fighting Fire With Wire - If 15m is hot and your antenna's not, try the V-bomb array ...... W6TYH 26 Brew a Coffee Ground Plane - No cream, no sugar-just a 440 antenna that really percolates ...... WA2OVG 30 Takin' It to the Streets-Part I - Work the...
Topics: antenna, mhz, radio, swr, tor, frequency, amateur, amateurs, radio amateurs, antennas, base...
73 Magazine August 1977 (#203) Dual Rhombic for VHF-UHF ...... W8DMR 24 Microwave Waveguide Details ...... Moak 28 Centerfed Specials ...... K4MDK 30 Recycle Your Receiver ...... W9VZR 32 Build a Double Bazooka ...... K4KI 36 Dirt Cheap Directional Array ...... WA4BKO 40 Instant PS Regulation ...... W3MR 41 Take Cover! ...... WB5ASA 44 Introducing the Intenna ...... Norman 46 The Zeppy Vertical ...... K5GP 47 A Cure for Antenna Self-Destruct ...... W9TKR 48 Quick Ante nna Insulators .........
Topics: antenna, mhz, kit, power, meter, frequency, model, amateur, circuit, wire, power supply, amateur...
73 Magazine August 1992 (#383) The ViewPort VGA Color SSTV System - At last- a versatile slow-scan TV program and interface for the IBM PC ...... KA2PYJ 8 The Compact-A-Loop Antenna - 80 meters for the apartment dweller ...... G2BZQ 18 ATV Transmitter, Part I - Get on ATV easily and cheaply ...... K2MQJ, KA2CWL 22 The Explorer - HF receiver for 40 and 80 meters ...... K5WMS 30 Digital ALC - A simple way to get the best out of any transmitter ......N7APE 36 A Frequency Counter Upgrade - Accuracy...
Topics: amateur, mhz, radio, antenna, ihe, frequency, fax, audio, ham, amateur radio, radio today, power...
73 Magazine September 1993 (#396) Computer Control for Beam Antennas, Part II - Give your station a smart, new twist ...... K4OND 10 The W2EKY "Icky-Stick" Antenna - Hit the roof with an improved ground-plane vertical ...... W2EKY 18 Compressing the W3EDP - Build this unique multiband restricted space antenna ...... G2BZQ 20 Distributed Capacity Twisted Loop - An indoor 40 meter antenna for five bucks ...... WA6QBU 26 Evolution of an Antenna - Build a new version of the classic...
Topics: radio, antenna, amateur, mhz, ham, repeater, frequency, amateur radio, radio today, ham radio,...
73 Magazine September 1991 (#372) The Square Pancake Antenna - A 20-inch square marvel! ...... W2SMR 18 Indoor 10 Meter Beam - A 2-element "invisible" coaxial antenna ...... N9CAP Economical Mobile HF Antenna - Modify a Radio Shack CB antenna for the HF bands ...... AA6NG 26 DXDA Awards and Countries - The latest update, thanks to Bob Reed WB2DIN ...... Staff 30 Dual-Band Vertical - This one's for the 160 and 1750 meter bands ...... WD4PLI 38 The L-O-N-G Long-Wire - What is it like to...
Topics: antenna, radio, amateur, ham, island, amateur radio, meter, mhz, ham radio, radio today, feedback...
73 Magazine April 1995 (#415) A Practical Weather Satellite Receiving System, Part 2 - Software and interfacing with me PC ...... ZR6UM 10 Build an Intelligent Relay - A quick-to-make microprocessor-based device, controlled by your HT ...... N8LXS 22 The Antenna Elevator - The closest thing to a skyhook ...... WB2DZF 36 Specialized Top-Band OX Receiving Loop - Listen to the action on 160 meters ...... G2BZQ 38 Build an Efficient HF Mobile Antenna - An electrically and mechanically sound design,...
Topics: antenna, radio, mhz, amateur, frequency, ihe, ham, meter, mfj, amateur radio, radio today, ham...
73 Magazine June 1974 (#165) Poor Man's Quad - The Adventures of George, The Antenna Maker ...... W6SUN 17 Reconciling the Long Squared Quad - Developing a new type antenna ...... W4KAE 27 Antenna Load Indicator - Whoops, there goes another swisher! ...... W5JJ Matching - The poor little match girl and her coathanger ...... WB2PAP 37 Remotely Tunable Antenna Coupler - Watch out, Johnson ...... W2EEY 45 A Practical Ground System for 160 - Makes a difference! ...... W6FPO 51 Wide -Range Antenna...
Topics: antenna, mhz, power, dip, amp, meter, dual, repeater, amateur, voltage, power supply, reflected...
73 Magazine March 1993 (#390) Constructing High Current Power Supplies - Practical considerations learned through experience ...... KE9ED 10 Fiber Optics and Amateur Radio - Is fiber-optic technology in our future? ...... AJ0N/LA6US 14 Digital Satellite Gateway Nodes - How to get on OSCAR 22 with an HT ...... WA0PTV 19 Clock It Quick - Tame ripple counter chips ...... Arnoid 22 Dual Half-Wave Antenna - A ground independent antenna with gain ...... KE2QJ 26 Active Antenna Using a MOSFET - Build...
Topics: radio, amateur, antenna, frequency, satellite, amateur radio, repeater, mhz, feedback card, radio...
73 Magazine October 1991 (#373) The Sudden Receiver - A simple-to-build receiver for 160-20M ...... G3RJV 8 A 10M Sideband Transmitter - Add voice to your QRP station ...... NZ5G 14 Simple Gain Antenna for 903 MHz - Build it for under $25 ...... AD5X 27 Microprocessor Repeater Controller, Part I - Add versatility to your repeater system ...... WB3ESS 28 Low-Pass Antenna Tuner - Match your antenna while reducing harmonics with this unique design ...... KB4ZGC 46 Kenwood's TH-77A Dual-Band Walkie...
Topics: radio, amateur, mhz, antenna, repeater, frequency, ham, amateur radio, radio today, ham radio,...
73 Magazine September 1988 (#336) Antenna Systems - Sometimes "good" is bad and "bad" is good ...... W3ZC 10 Aluminum Cloud - A top performer for cliff dwellers ...... NF0R 14 Balloon Supported Antennas - How to really get out on 80 and 160 meters ...... W1GV 18 MARS and Amateur Radio - The military affiliated radio system ...... W1ZM, NNN0WAJ 23 Auto VIM: Part Two - Smart power supply for every bench ...... W4RNL 27 Pee Wee Thirty Transceiver - A compact 30 meter CW/AM QRP...
Topics: antenna, amateur, radio, mhz, power, swr, antennas, frequency, amateur radio, feedback card, power...
73 Magazine October 1996 (#433) Ultimate Power! - Station power from a dead UPS ...... KF9GQ 10 Colorado QRP Club's Field Day Operation - Field Day the hard way ...... AAOXI 14 440 Yagi Link antenna - Improve your repeater system by building new antennas for about $2 each! ...... KA0NAN 16 A Versitile QRP Random-Wire Antenna Tuner - A quick way to tune up your QRP rig in the field ...... KB4ZGC 19 Operating RS-12 -It's easy ...... N5UHB/XE2MXU 23 A Multiband Trap Dipole Antenna System - This...
Topics: radio, antenna, amateur, mhz, frequency, power, qrp, ihe, ham, amateur radio, radio today, ham...
73 Magazine January 1998 (#448) Get Active! - A nice amp project for building your own active antenna ...... W2GOM 10 Upgrading the 209 - Add this simple resistance meter to your MFJ antenna analyzer ...... KG5CM 15 Five-Band Magnetic: Loop Antenna - Build a loop for QRP, and tune it up just right ...... K2KSY/HL9BK Electronic Construction from A to Z, Part 3 - Everything you wanted to know about building stuff but were afraid to ask ...... AA0XI/VK5FN 22 Mount Up! - Try this easy cell...
Topics: radio, antenna, amateur, frequency, ham, mhz, hams, island, kit, amateur radio, radio today, ham...
73 Magazine September 1994 (#408) Compact 160 Meter Transmitting Loop Antenna - You don't need to move to a new QTH! ...... G2BZQ 10 The Discriminator - A directional receiving antenna for hams and SWLs ...... G2BZO 16 Low-Cost Transmission Lines - What you don't know can cost you ...... K5DKZ 22 The Challenge of 1750 Meters - No license required ...... WD4PLI/6 36 The HOFI Antenna Switch - Quality at every turn ...... WA4BLC 24 Computer Automation Technology's CAT 1000 and CAT 300 Repeater...
Topics: radio, antenna, amateur, ham, repeater, amateur radio, meter, mhz, ham radio, radio today, feedback...
73 Magazine November 1994 (#410) An Average and Peak Reading RF Power Meter - Add this handy monitor to your operating table ...... K4GOK 10 440-450 MHz Omnidirectional Antenna - Build this UHF base or repeater antenna for less than 10 bucks! ...... KA0NAN 22 Adapting Bell 202 Telephone Modems for Packet - Enjoy packet radio with this bargain basement project! ...... KI5PG 42 The Kenwood TS-60S - 50 MHz all-mode transceiver ...... WB2WIK/6 14 The Alinco DJ-G1T Handheld - An HT with a built-in...
Topics: antenna, radio, amateur, mhz, frequency, meter, repeater, ham, power, amateur radio, radio today,...
73 Magazine May 1982 (#260) Pacific Odyssey - the Kingman/Palmyra adventure ...... KB7NW 12 Top-Notch for Top Band - super antennas for 160 ...... N3BEK 26 The Fun-Amp - 20 Watts out ...... WA0RBR 32 The CCD Antenna Revisited - does it measure up on 40m? ...... W4ANL 40 Antenna-Raising: The Good-Neighbor Policy - sidestepping civil war ...... AK5Q/4 42 'Lite Receiver IV - part I: building it is a breeze ...... WA40SR, WA4CVP 48 TVRO Sound Decoders - Satellite Central, part VI ...... Gibson 58...
( 2 reviews )
Topics: antenna, amateur, mhz, radio, magazine, tor, power, frequency, pth, amateur radio, power supply,...
73 Magazine February 1993 (#389) Fun at 10,000 MHz - Explore the wide open spaces of the 10 GHz microwave band ...... WB6NOA 10 The 23-Foot Indoor Antenna - Make an effective 20 and 80 meter apartment-owner antenna ...... G2BZQ 16 Accurate Low Cost VSWR Meter - Convert this CB accessory for 1.8-450 MHz operation ...... AD5X 18 An Effective 160 Meter Antenna - How to build one on a small residential lot ...... KA6MMQ 20 The "Simplest Transverter" - Check out the 6 meter band with this...
Topics: radio, antenna, amateur, mhz, frequency, ham, meter, ghz, output, amateur radio, radio today, ham...
73 Magazine May 1980 (#236) Home-Brew Rf Impedance Bridge - indispensable tool for antenna fans ...... WB6BIH 30 Rotary Beam for 10 or 15: the LB-2 - eliminates nasty matching problems ...... W6TYH 36 The 20-Meter Double Bobtail ...... W8HXR 44 Simple Switcher - a remote antenna switch with no control wires ...... WB5SFB 48 Taming the Monster Quad - a four-element blockbuster you can build ...... WA4JQS 50 For Cheapskates Only: A No-Frills Tilt-Over - requires a friend with a welding rig .........
Topics: antenna, amateur, mhz, radio, frequency, power, magazine, meter, swr, amateur radio, driven...
73 Magazine April 1994 (#403) Motorcycle Mobile! - Take ham radio two-wheeling ...... KC6QJB 10 The 40 Meter Full-Wave Horizontal Loop - Take your signal to the treetops ...... NH6XK 14 The Big Kahuna - A 15' high, 160 meter Distributed Capacity Twisted Loop Antenna ...... WA6QBU 20 A Sensitive Bandspread SWL Receiver - Aaah, the nostalgic smell of dust burning off tubes! ...... XE2/KB6EPO 32 A 2 Meter Half-Kilowatt for $1 per Watt - Build this VHF amp using vacuum-tube technology! .........
Topics: radio, antenna, amateur, mhz, power, meter, ham, ihe, antennas, amateur radio, radio today, ham...
73 Magazine December 1966 (#75) Transistor Power Supplies - Useful information on low-voltage DC supplies ...... W6GXN 10 The Sideband Escalator - Have you tried SSB speech clipping? ...... W6TAQ 16 A Ham Electronic Counter - Determine your frequency the modern way ...... K7UDL 20 The Novice Pair - Build a practical, modern novice station ...... W1JJL 28 A Lab-Type Power Supply - Regulated low-voltage output; PC construction ...... W6GXN 38 QRZed the YL - The frustrations of an YL's husband...
Topics: tlie, antenna, power, circuit, voltage, output, meter, frequency, ssb, ham, power supply, amateur...
73 Magazine October 1988 (#337) Packets Full of Pixels - Digital video is now available to the mortal ham ...... WD8AQX 10 A Trip Through The Microwave Spectrum - The scoop on what goes on between 1-10 GHz ...... KT2B 14 10 GHz Polaplexer - Unique way to go full-duplex on 3 cm ...... WB6IGP 20 VHF/UHF Tape Antenna - Fast n' cheap way to get active on 2 meters and above ...... WB3KCZ 24 Portable Re-entrant Cavity Antenna - This "can-do' whip gives better HT antenna performance ...... W7ACI...
Topics: antenna, amateur, radio, mhz, ham, antennas, power, kenwood, frequency, amateur radio, feedback...
73 Magazine September 1995 (#420) Simple J-Type 10m Vertical - For more versatile DXing ...... W6IOJ 10 Tuner Helper - An easier (and safer) way to tune your antenna while driving ...... K3PUR 14 Just Another Loop Antenna - Or is it? ...... WB2EGQ 20 A Discone Antenna for 10 Meters - It looks like a bird cage, but works like a yagi ...... W1ZB/6 32 Check Your SWR Bridge - Think you have a good bridge? Find out for sure ...... K1WVX 34 Longwave-Plus DX Techniques - Exploring the undervalued...
Topics: antenna, radio, amateur, frequency, receiver, power, ham, mhz, radio today, amateur radio, feedback...
73 Magazine April 1991 (#367) Artificial RF Ground - Maximize your antenna's efficiency ...... KB4ZGC 10 The ESV Mod Quad - Inexpensive performer for any band from 50 through 1296 MHz ...... WB0ESV 14 Collinear for Two Meters - An inexpensive, efficient antenna ...... G3YCC 24 Simple SupeRX - A super-small superhet for 80, 40, or 30m ...... WA6IVC 26 Pocket-Portable Seven-Band Antenna - It's cheap, easy-to-build, and effective ...... KB4ZGC 46 Ten for 10 - Build a high performance, 10 meter...
Topics: antenna, radio, amateur, mhz, ham, repeater, wire, meter, frequency, amateur radio, radio today,...
73 Magazine November 1967 (#86) Integrated Circuit Frequency Counter - A 100 kHz counter for less than $50 ...... W0LMD 6 2 Kilowatt PEP for Six Meters - A complete transverter for 50 MHz ...... K6RIL 12 A Pulse Generator for the Amateur - Versetile test equipment for the shack ...... W6GXN 20 Mighty Four on Six - Low-cost transistor transmitter for six meters ...... K9VXL 24 Incentive Licensing - Complete story on our new regulations ...... W1DTY 28 Feeding the Cat Underwater - Experiments...
Topics: amateur, antenna, radio, ham, voltage, meter, frequency, power, transistor, khz, amateur radio,...
73 Magazine September 1987 (#324) Radio At Green Bank - This remote site in West Virginia is home to one of the most impressive collections of radio antennas in the world ...... AJ0N 16 A Foldover Cheapie - Convert scrap water pipe to a 40-foot fold-over antenna tower! ...... KF4BI 19 Out-of-the-Ordinary QTH's - Here are some ideas to help you gel out on your portable antenna - when you really need to ...... K4IPV 22 Non-Etched Swr Bridge - This five-dollar afternoon project will measure swr to...
Topics: radio, antenna, amateur, mhz, antennas, repeater, vhf, band, amateur radio, power supply, green...
73 Magazine September 1996 (#432) The Amateur's Guide to Free Energy Devices - A history and hints for further experimentation ...... WA8YKN 10 Adventures on the Red Sea - DXing in style in an unforgettable setting ...... KA9SOF 20 The Wonderful Twin-T - Its a code oscillator: a transistor, or even a piano! ...... AD4UA 24 A Kite/Balloon-Supported Zepp for 160 Meters - Make your antenna fly high! ...... W1GV 26 My Indoor Antenna Farm - Yes, you really can DX with a stealth antenna ...... W6YBT...
Topics: radio, antenna, amateur, ihe, frequency, mhz, ham, arrl, thai, amateur radio, radio today, ham...
June 1978 (#213) Happiness Is Being A Ham Manufacturer - 73 visits Cushcraft ...... W2NSD/l 30 Extended Double Zepp - old-timer's delight still works ...... W6TYH 34 New Dipole Feeder - tuned feeders, yet! ...... AA6AX 38 The Cliff-Dweller's Delight - how to operate from an apartment ...... WA2UVC 40 Wait Till You Try 16 Elements! - 15dB gain on 2m is a real kick ...... WA8FCA 42 Working 15m With A 20m Beam - by adding three more elements ...... W8ZCQ 46 A Better Feedthrough For Cables - the $2...
Topics: antenna, mhz, meter, amateur, vertical, antennas, frequency, wire, radio, coax, amateur radio,...
73 Magazine December 1997 (#447) Distributed Capacity Folded Loop - This ceiling-mount antenna will really go to your head! ...... W6NBC 10 How to Silverplate RF Tank Circuits - A simple and inexpensive process to reduce losses ...... WB2CQM 18 Build Your First Kit! - Just follow one hams simple advice ...... N0BLX 24 Limited Space Antenna - Short of real estate? This might help! ...... HL9BK/K2KSY 27 How to Build A Great Ham Club - Good advice from the PR master ...... W2NSD/1 29 Electronic...
Topics: amateur, radio, antenna, loop, ihe, ham, circuit, solder, kit, amateur radio, radio today, special...
73 Magazine February 1997 (#437) Amateur Radio and Linux - Software home-brewing is here! ...... W9IF 10 Elegant Rotating Revisited - An enhanced Beam-aiming circuit ...... W1ZZB 17 Antenna Tuners - Do we really need them? ...... W6YBT 21 The Topbander - A cheap and easy antenna tuner for 160 meters ...... W8ND 23 Build The Turbo Digi-Sniffer - A simple-to-make digital field strength meter ...... AH2HR/5 26 Sumas Mountain High - Building a self-sufficient repeater tower on a British Colombian...
Topics: radio, antenna, amateur, power, circuit, meter, ham, linux, antennas, amateur radio, radio today,...
73 Magazine November 1996 (#434) Switching Power Supplies - Different is good! ...... NZ9E 10 Designing RF Probes - A simple one-hour test equipment project ...... KB4ZGC 17 A Low Current Light - Great portable operation ...... KB4ZGC 19 Can You Top This? - The worlds tallest mobile antenna? ...... N6JF 20 The CCD antenna is now available for the amateur bands - A QRP/SWR Power Meter ...... KB4ZGC 28 A Dirt-Cheap Broadband 80 Meter Vertical - The "outhouse" antenna ...... W0RKU 30...
Topics: antenna, radio, amateur, mhz, frequency, ham, power, voltage, output, amateur radio, radio today,...
73 Magazine June 1971 (#129) Driven Versus Parasitic Antenna Elements on Two Meters - Are they really better? ...... W6AJF 12 3 Squares for Two - Humdinger Quad ...... K8CFY 18 I Can't Learn the Code - Too bad. See you on eleven meters ...... W0FEV 22 Covering Additional Frequencies With Dipoles - 40/15m, 80/10m, etc ...... W9EGQ 26 Weather Balloon Verticals - The only way to go is up ...... K4EPI 32 Squelch Addition for the Pocket Pager - You don't have a pocket pager? ...... WA8PIA 34 VFOing...
Topics: antenna, mhz, frequency, modulation, signal, wire, radio, bandwidth, gain, audio, amateur radio,...
73 Magazine October 2000 (#479) With Fingers Crossed - The latest on Phase 3-D ...... G3RWL 10 Low-Cost P3D Antenna Setup - These three antennas are perfect for everybody ...... K5OE 17 Cruising for Satellites - If you can get away with it, this is the best of both worlds ...... W5ACM 22 From Russia, With Satellite - "The name is Brown, Jerry Brown" ...... 27 Inside Digital TV/VCR Tuners - Part 2: Data transmitter for testing ...... W6WTU 30 OSCAR-10 Antenna System - A look at the...
Topics: amateur, antenna, radio, satellite, antennas, mhz, mfj, kit, receiver, amateur radio, radio today,...
73 Magazine January 1995 (#412) The Pyramid Antenna - Harness the power of this 10 meter workhorse ...... W9CGl 14 Using GE Progress Line Receiver Strips - A low-tech solution for many situations ...... KI5PGI 24 PTT Control from Receiver Audio - Here's an easy way to key a transmitter for remote or repeater operation ...... KB8XI 32 The 80/40/30m Tripole - It's a what? ...... W9CGI 36 The Yaesu FT-840 HF Transceiver - Enjoy a simple-to operate full-featured HF rig ...... N1BAC 10 The MFJ-1796...
Topics: antenna, radio, amateur, ham, mhz, mfj, power, receiver, audio, frequency, amateur radio, radio...
73 Magazine September 1986 (#312) A Rotatable What? - How to spin 90 feet of crank-up tower on a lazy susan ...... WA2VUN 28 HF Antennas: All Bands, All Wire - Another round in the crusade against coax—these three 9-band doublets contain no artificial ingredients ...... W0VM 32 Watts My Line - Coax, parallel feeders, or microstrip, this Basic program lets you design your own custom transmission line ...... K4IPV 36 Scaling the Wet Noodle - Antennas in one-quarter time: Experiment with your...
Topics: antenna, amateur, radio, antennas, print, ham, frequency, mhz, amateur radio, voltage, packet...
73 Magazine June 1973 (#153) Simple Generator for 222 MHz - This three transistor oscillator and attenuator will enable you to tune up a 222 receiver or antenna and measure the sensitivity. There are still new worlds to explore -try 222 ...... K1CLL 23 Miniature 80 and 40 Meter Antenna - Brand new idea for the experimenter - don't, say there isn't anything new that amateurs are working on. Get cracking ...... W2EEV 29 UHF Output Meter - Accurately measuring rf power at 444 MHz is a problem...
Topics: antenna, amateur, repeater, meter, mhz, radio, frequency, watts, power, transmitter, amateur radio,...
73 Magazine July 1981 (#250) Dayton Dilemma '81 - which new gear do you buy? ...... KA1LR 22 The Fun-Ceiver - easy-to-build companion to February's QRP Fun-Mitter ...... WA0RBR 32 Review: The Kenwood TS-130s - a good rig done better ...... KA1LR 38 Review: The NCG-15 SSB/CW Monoband Transceiver - moving tale of mobile hamming ...... KA1LR 42 The Incredible Shrinking Antenna - give your vertical a top hat ...... W1GV/4 44 Review: The Micro Control Specialties Mark 3CR - a hassle-free repeater...
favoritefavoritefavoritefavoritefavorite ( 1 reviews )
Topics: radio, antenna, amateur, mhz, frequency, magazine, power, receiver, meter, amateur radio, power...
73 Magazine February 1989 (#341) Getting High On Packet - World-wide packet? Here's how on HF ...... WB6RQN 50 One-Stage 80-Meter CW Transceiver - Enjoy the thrill of rolllng your own rig ...... WB3ELL 28 TCM 3105 Modem For The Digicom > 64 - Plug in to 1200 baud packet ...... N4PLK, KJ4GP, W4KUM, WD4PVS 42 Simple CW IDer - Useful for repeater ID and unattended fox ...... WN0EHE 54 Kenwood TS-940S - First-class full-featured HF rig ...... WB6RQN 12 lCOM IC-781 - Scope out this DX dream...
Topics: radio, antenna, amateur, mhz, frequency, meter, ham, audio, amateur radio, feedback card, radio...
73 Magazine January 1991 (#364) High Precision Frequency Standard - Use your TV set as a laboratory standard ...... Johnson 9 Scrounger's Guide to Recycled Electronics - Discover a gold mine of inexpensive parts ...... W5FG 22 An HF/VHF/UHF Marker Generator - Get on frequency for less than $10 ...... K84ZGC 27 A Parallel Port I/O Board - Control your world! ...... VE6BGL 29 The Three-Terminal Regulator - Multiple uses in one package ...... N9RF 40 Rose Parade Mobile - A high-tech HF remote...
Topics: radio, amateur, antenna, mhz, frequency, ham, output, tor, amateur radio, radio today, ham radio,...
73 Magazine August 1996 (#431) Build the QUAD-12 Personal DataLogger ...... N8KDO 10 Vee Antenna With Vertical Tails - A multiband antenna with low-angle radiation for the low bands ...... K0NM 16 PC Controlling Your Rig - All it takes is a few parts and a BASIC program ...... K8KWD 22 Worthy of Recognition: Hap Holly KC9RP - Blindness is a challenge for this versatile, accomplished ham ...... NZ9E 28 Simple Crystal Activity Tester - Check and match crystals for your home-brew projects .........
Topics: antenna, radio, amateur, frequency, ham, mhz, voltage, circuit, hams, ihe, amateur radio, radio...
73 Magazine May 1996 (#428) Build the Bioelectrifier - Heal yourself and take a poke at the medical establishment the same time! ...... WA8YKN 10 Belcher Islands DXpedition - Take off to the Great White North ...... VE3WFS 20 A 220 Super J-Pole Antenna - 220 -Use it or loose it. Here's a simple, inexpensive one-hour building project ...... KA0NAN 26 The Difference Is Dedication - Ham radio Saves four communities ...... K7OOZ 30 Tape-Wound Antennas - Neat, efficient, and easy to build .........
Topics: antenna, radio, amateur, mhz, frequency, power, hams, ham, meter, amateur radio, radio today,...
73 Magazine November 1991 (#374) Voice ID on a Chip - Throw your voice with this versatile Circuit ...... WB8ELK 11 Portable Frequency Counters - Versatile test equipment that you can really count on ...... WB6NOA 15 Half-Wave Gain Antenna - For 450 MHz handie talkies ...... AD5X 26 The Heli-Hat Antenna - An 18-inch wonder for 10-17 meters ...... KB4ZGC 32 Showdown in Portland - Discover the thrill of radiosporting ...... K0OV 38 Microprocessor Repeater Controller, Part II - This month, the...
Topics: antenna, radio, mhz, amateur, repeater, frequency, audio, ham, ihe, amateur radio, radio today, ham...
73 Magazine September 1963 (#36) Cast Iron Balun - Using ferrite core inductors. 73 parts kit available ...... W4WKM 8 CW Noise Limiter - Or have you noticed that your noise limiter turns off on CW? ...... W6SFM 10 Errorless RTTY Converter - Well, almost errorless ...... K5JKX 12 Bourbon S-Meter - As contrasted with the more popular Scotch S-Meters. Parts kit on this ...... W6TKA 18 Cartoon - Har de har ...... Rodgers 20 Towers - Compendium ...... K1APA 22 VHF Receiver - Module type...
Topics: frequency, meter, receiver, rec, antenna, power, tlie, cavity, tuning, xmtr, power supply, front...
73 Magazine July 1979 (#226) A Visit to Antenna Specialists - Wayne tours the test range ...... W2NSD/1 30 Secrets of Guyed Towers - put 'em up and keep 'em there ...... WB3BQO 34 Death-Defying PL Mod for the KDK 2015 - not for the squeamish ...... W8GQL 40 Feed-Horn Mounting Made Easy - solution to a pesky problem ...... WB8DQT 44 Antenna Tuning Joy Revisited - remember the Tektronix 190B? ...... W9CGI 48 Modern Solid-State Equipment Design: A Better Way - sorry, tube fans ...... W4RNL 52...
Topics: antenna, khz, mhz, amateur, meter, frequency, tower, radio, tion, amateur radio, power supply,...
73 Magazine October 1982 (#265) The Splattometer - visual overmod warning ...... W1BG 10 Digital Basics - part II ...... K4IPV 20 Dissertation Upon Roast Pig - the ultimate in surplus? ...... N6TO 28 Got an Apple? Want RTTY? - try this hard-core interface ...... WB6FBN/4 34 The Pleasures and Perils of Crankup Towers - don't lose your head! ...... K4TWJ 40 The Incredible Antenna Mark 2 - a complete HF allbander in a very small space ...... KL7ISA 44 The Amazing Beam reader - point it with your...
Topics: antenna, output, amateur, mhz, power, magazine, radio, ham, por, power supply, amateur radio, toll...
73 Magazine August 1970 (#119) Mount That Mobile Right! - There are a lot of ways of doing it wrong; just ask most mobile ops ...... K4IPV 14 Amateur Wattmeter for $3.85 - Unless you'd rather shell out umpteen bucks for a Bird wattmeter ...... K1CLL 20 The Consummate Console - Be the envy of every ham in town. Even your wife might warm just a little ...... WB2FBF 22 An Impedance Multiplier for the VOM - How to make your VOM read like a VTVM or such ...... K6DQB 27 Repeater Audio: Time Out for...
Topics: voltage, amateur, antenna, radio, mhz, reactance, repeater, impedance, frequency, audio, amateur...
73 Magazine September 1989 (#348) Vertical Antennas at HF: Part I - The inside story on vertical antennas ...... W1GV 38 Build a 30 Meter Trap - Modify your Cushcraft AV-4 or AV-5 for this WARC band ...... KE0UV 11 Unique 12 and 17 Meter Dual-Band Beam - Build this for an 8 dBd signal! ...... W6YUY 20 Kaboom Micro Keyer - For safe mobile CW operation ...... KB1UM 28 3/4 Inverted "U" for 160m - Big signal on the Top Band ...... WA3EKL 32 The Hamfester - "Crowdbuster" for your...
Topics: antenna, radio, amateur, mhz, frequency, meter, antennas, ham, power, amateur radio, feedback card,...
73 Magazine June 1970 (#117) A Practical DDRR Antenna - Expensive, difficult-to-build mediocre antenna ...... W6WYQ 20 VFO Circuit - In case you are tired of crystal control ...... K0HVK 36 The Low-Noise Antenna - High noise you're looking for? ...... WB6JNI 39 Experimental Remote SWR Indicator - Experimental means we think it might work ...... W2EEY 41 The Little Wonder: Mark 11 - Proving again that almost anything will radiate ...... W5ZBC 46 CW Can Be Fun (With the Ord DK-1) - if you know...
Topics: antenna, erm, meter, swr, amateur, element, radio, ham, tuning, output, amateur radio, ground...
